NASA’s Astronomy Picture of the Day on October 11, 2026, featured a photograph of equipment being installed at the IceCube Neutrino Observatory near the South Pole and explained how the facility detects cosmic neutrinos.
According to NASA’s caption, IceCube consists of nearly 100 vertical holes melted into Antarctic ice. Detector strings, fitted with light sensors, were lowered into the holes, which then refroze. The sensors detect blue light produced when fast-moving secondary particles travel through the surrounding ice after high-energy neutrinos collide with ice molecules.
The image, credited to the National Science Foundation, B. Gudbjartsson and the IceCube Collaboration, shows one of the final detector strings being lowered in 2010. NASA describes IceCube as the largest neutrino detector ever created and says it has detected many neutrinos.
The caption also reports that a founding leader of the IceCube Collaboration was announced earlier in the week as a Nobel Prize in Physics recipient. The APOD entry does not identify that person or provide further details about the award announcement.
